This is a great way to introduce or review the quadratic formula with your students! First, guide them through the note taking activity. After they have practiced a few, they will complete the tarsia puzzle! This is a fun, hands on activity that can be done in small groups as a team challenge or individually for extra practice. Prior to giving students the puzzle, cut it apart. They will solve each quadratic using the quadratic formula and form the puzzle by matching the sides. Enjoy!